The oldest of those two record-cleaning technologies is hardly obsolete. Most of the machines still cleaning today use the brush-and-vacuum approach. But I’m starting to see a split in the market, the top end dominated by ultrasonic cleaners. Vacuum machines are mostly, though not exclusively, considerably lower in price, usually below $1000. Ultra- sonic cleaning is clearly the flavor du jour, but something has been bugging me about ultrasonic cleaning from the start.
Cavitation cleaning has an amazing ability to scrub out deeply embedded groove contamination—ultrasonics are usually better at this than scrubbers—it’s the differences in how these two types of machines dry the cleaned record that leave me scratching my head a bit.
With a cavitation cleaner, contaminants get knocked off the record by the cavitation microbursts, then dispersed in the water surrounding the record. When the clean- ing cycle is complete, you either remove the record and allow it to air dry or leave it to the machine to drain the water before the record is dried with fans blowing air over the record surface.
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Philharmonic Audio BMR Monitor
Let's get this out of the way: The BMR Monitor may be a monitor, but it isn't a bookshelf or desktop speaker any more than a yacht is a dinghy.
Technics SC-CX700 ACTIVE LOUDSPEAKER
The usual Specifications box (below) is a nuts-and-bolts listing of the electrical and physical properties of the Technics SC-CX700 loudspeaker, who made it and where, and a widely varying amount of information about their electrical and acoustical performance. The information comes from the included literature, available downloads, and whatever I could find on the manufacturer's website.
Youth movement
Paul Klipsch was a genius,” Roy Delgado told me recently, with the sound of genuine amazement in his voice. “Me, I’m just a tinkerer.”
Wattson Audio Madison LE Streamer
After it was delivered, I weighed the box containing Wattson Audio's DAC-equipped Madison LE Streamer on my bathroom scale.
Grimm Audio LS1c ACTIVE LOUDSPEAKER SYSTEM
It's not unusual for audiophiles to have fond childhood recollections of the old family stereo, but Eelco Grimm's memory of his dad's audio system probably stands alone.
Cambridge EXN100 STREAMING D/A PROCESSOR
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J.Sikora Standard Max Supreme, KV9 Max Zirconium
In his review of the J.Sikora Initial turntable, Stereophile's resident artist/sage Herb Reichert wrote, \"Extended bathing, lighting candles, making tea, and preparing food are ritual work forms that prepare my senses to accept both pleasure and illumination.\"
The Voxativ Hagen2 Monitor loudspeaker
I think I just found the perfect Herb speaker. It uses a hand-crafted 5\" wide-range driver with a cone made from Japanese calligraphy paper. It rolls off around 50Hz at the bottom and 30kHz at the top. It has no crossover. Its cabinet is made of MDF that responds loudly when I tap it with my fingernails. Inside is what its designer calls a “short horn,” which appears to harmlessly disperse back-cone energy while adding energy below the driver’s cutoff frequency. Mainly, though, it’s a perfect Herb speaker because it is naturally phase coherent. And sparkplug fast. And completely unmuffled.
The Beatles in Mono according to Kevin
It's almost too easy to make Dave Dexter Jr. the villain in the story of the Beatles' fumbled introduction to America.
